Oral lichen planus: a review.

Lichen planus is a somewhat frequent oral lesion. The most prevalent type is reticular, which is asymptomatic. The erosive and atropic forms, although not as common, cause discomfort or pain, and the patient usually demands attention. Treatment modalities include the use of topical steroids, although retinoic acid, griseofulvin and cyclosporine have been used. The occurrence of squamous cell carcinoma in areas of lichen planus make it necessary to follow up on patients suffering from chronic lesions.